135440520410011 has 32 divisors (see below), whose sum is σ = 151515673217280. Its totient is φ = 120453924864000.

The previous prime is 135440520409949. The next prime is 135440520410021. The reversal of 135440520410011 is 110014025044531.

It is not a de Polignac number, because 135440520410011 - 2²⁷ = 135440386192283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135440520410021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 598648711 + ... + 598874911.

It is an arithmetic number, because the mean of its divisors is an integer number (4734864788040).

Almost surely, 2^{135440520410011} is an apocalyptic number.

135440520410011 is a deficient number, since it is larger than the sum of its proper divisors (16075152807269).

135440520410011 is a wasteful number, since it uses less digits than its factorization.

135440520410011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252135.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 135440520410011 its reverse (110014025044531), we get a palindrome (245454545454542).

The spelling of 135440520410011 in words is "one hundred thirty-five trillion, four hundred forty billion, five hundred twenty million, four hundred ten thousand, eleven".